// -*- mode:java; encoding:utf-8 -*-

// vim:set fileencoding=utf-8:

// @homepage@

package example;

import java.awt.*;

import java.io.IOException;

import java.net.URL;

import java.util.Objects;

import java.util.Optional;

import java.util.logging.Logger;

import javax.sound.sampled.AudioInputStream;

import javax.sound.sampled.AudioSystem;

import javax.sound.sampled.Clip;

import javax.sound.sampled.DataLine;

import javax.sound.sampled.LineEvent;

import javax.sound.sampled.LineUnavailableException;

import javax.sound.sampled.UnsupportedAudioFileException;

import javax.swing.*;

public final class MainPanel extends JPanel {

private MainPanel() {

super(new BorderLayout());

JButton b1 = new JButton("play");

String p1 = "example/notice1.wav";

b1.addActionListener(e -> getUrl(p1).ifPresent(this::loadAndPlayAudio));

JButton b2 = new JButton("play");

String p2 = "example/notice2.wav";

b2.addActionListener(e -> getUrl(p2).ifPresent(this::loadAndPlayAudio));

Box box = Box.createVerticalBox();

box.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));

box.add(makeTitledPanel("notice1.wav", b1));

box.add(Box.createVerticalStrut(5));

box.add(makeTitledPanel("notice2.wav", b2));

add(box, BorderLayout.NORTH);

setPreferredSize(new Dimension(320, 240));

}

public Optional<URL> getUrl(String path) {

URL url = Thread.currentThread().getContextClassLoader().getResource(path);

return Optional.ofNullable(url);

}

public void loadAndPlayAudio(URL url) {

try (AudioInputStream wav = AudioSystem.getAudioInputStream(url);

Clip clip = getLine(wav)) {

EventQueue eventQueue = Toolkit.getDefaultToolkit().getSystemEventQueue();

SecondaryLoop loop = eventQueue.createSecondaryLoop();

clip.addLineListener(e -> {

LineEvent.Type t = e.getType();

if (Objects.equals(t, LineEvent.Type.STOP) || Objects.equals(t, LineEvent.Type.CLOSE)) {

loop.exit();

}

});

clip.open(wav);

clip.start();

loop.enter();

} catch (UnsupportedAudioFileException | IOException | LineUnavailableException ex) {

// ex.printStackTrace();

Toolkit.getDefaultToolkit().beep();

}

}

private static Clip getLine(AudioInputStream wav) throws LineUnavailableException {

return (Clip) AudioSystem.getLine(new DataLine.Info(Clip.class, wav.getFormat()));

}

private static Component makeTitledPanel(String title, Component c) {

JPanel p = new JPanel(new BorderLayout());

p.setBorder(BorderFactory.createTitledBorder(title));

p.add(c);

return p;

}

public static void main(String[] args) {

EventQueue.invokeLater(MainPanel::createAndShowGui);

}

private static void createAndShowGui() {

try {

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

} catch (UnsupportedLookAndFeelException ignored) {

Toolkit.getDefaultToolkit().beep();

} catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {

Logger.getGlobal().severe(ex::getMessage);

return;

}

JFrame frame = new JFrame("@title@");

frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

frame.getContentPane().add(new MainPanel());

frame.pack();

frame.setLocationRelativeTo(null);

frame.setVisible(true);

}

}